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/* $Id: dirtree.c,v 1.5 2011/07/30 22:18:54 khorben Exp $ */

/* This file is part of DeforaOS Desktop Browser */

/* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, version 3 of the License.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>. */

#include <System.h>

#include <dirent.h>

#include <stdlib.h>

#include <string.h>

#include <libintl.h>

#include "Browser.h"

#define _(string) gettext(string)

#define N_(string) (string)

/* Dirtree */

/* private */

/* types */

typedef struct _Dirtree

{

GdkPixbuf * folder;

GtkTreeStore * store;

GtkWidget * view;

} Dirtree;

/* prototypes */

static GtkWidget * _dirtree_init(BrowserPlugin * plugin);

static void _dirtree_destroy(BrowserPlugin * plugin);

static void _dirtree_refresh(BrowserPlugin * plugin, char const * path);

/* callbacks */

static void _dirtree_on_row_activated(GtkTreeView * view, GtkTreePath * path,

GtkTreeViewColumn * column, gpointer data);

/* public */

/* variables */

BrowserPlugin plugin =

{

NULL,

N_("Directory tree"),

"stock_folder",

_dirtree_init,

_dirtree_destroy,

_dirtree_refresh,

NULL

};

/* private */

/* functions */

/* dirtree_init */

static GtkWidget * _dirtree_init(BrowserPlugin * plugin)

{

Dirtree * dirtree;

BrowserPluginHelper * helper = plugin->helper;

GtkIconTheme * icontheme;

GError * error = NULL;

GtkWidget * widget;

GtkCellRenderer * renderer;

GtkTreeViewColumn * column;

GtkTreeSelection * treesel;

GtkTreeIter iter;

gint size;

if((dirtree = object_new(sizeof(*dirtree))) == NULL)

return NULL;

plugin->priv = dirtree;

icontheme = gtk_icon_theme_get_default();

gtk_icon_size_lookup(GTK_ICON_SIZE_BUTTON, &size, &size);

dirtree->folder = gtk_icon_theme_load_icon(icontheme, "stock_folder",

size, GTK_ICON_LOOKUP_USE_BUILTIN, &error);

if(dirtree->folder == NULL)

{

helper->error(helper->browser, error->message, 1);

g_error_free(error);

}

widget = gtk_scrolled_window_new(NULL, NULL);

gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget),

GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

dirtree->store = gtk_tree_store_new(3, GDK_TYPE_PIXBUF, G_TYPE_STRING,

G_TYPE_STRING);

gtk_tree_store_insert(dirtree->store, &iter, NULL, -1);

gtk_tree_store_set(dirtree->store, &iter, 0, dirtree->folder, 1, "/",

2, "/", -1);

dirtree->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(

dirtree->store));

gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(dirtree->view), FALSE);

renderer = gtk_cell_renderer_pixbuf_new();

column = gtk_tree_view_column_new_with_attributes(NULL, renderer,

"pixbuf", 0, NULL);

gtk_tree_view_append_column(GTK_TREE_VIEW(dirtree->view), column);

renderer = gtk_cell_renderer_text_new();

column = gtk_tree_view_column_new_with_attributes(NULL, renderer,

"text", 1, NULL);

gtk_tree_view_append_column(GTK_TREE_VIEW(dirtree->view), column);

treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(dirtree->view));

gtk_tree_selection_set_mode(treesel, GTK_SELECTION_SINGLE);

g_signal_connect(dirtree->view, "row-activated", G_CALLBACK(

_dirtree_on_row_activated), plugin);

gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(widget),

dirtree->view);

gtk_widget_show_all(widget);

return widget;

}

/* dirtree_destroy */

static void _dirtree_destroy(BrowserPlugin * plugin)

{

Dirtree * dirtree = plugin->priv;

g_object_unref(dirtree->folder);

object_delete(dirtree);

}

/* dirtree_refresh */

static gboolean _refresh_child(Dirtree * dirtree, GtkTreeIter * parent,

char const * path, char const * basename);

static void _dirtree_refresh(BrowserPlugin * plugin, char const * path)

{

Dirtree * dirtree = plugin->priv;

GtkTreeModel * model = GTK_TREE_MODEL(dirtree->store);

GtkTreeIter iter;

gboolean valid;

GtkTreeSelection * treesel;

size_t i;

size_t j;

char * p;

char c;

if(path == NULL || (p = strdup(path)) == NULL)

return;

valid = gtk_tree_model_iter_children(model, &iter, NULL);

for(i = 0; valid == TRUE && p[i] != '\0'; i++)

{

if(p[i] != '/')

continue;

p[i] = '\0';

for(j = i + 1; p[j] != '\0' && p[j] != '/'; j++);

c = p[j];

p[j] = '\0';

valid = _refresh_child(dirtree, &iter, (i == 0) ? "/" : p,

&p[i + 1]);

p[i] = '/';

p[j] = c;

}

free(p);

if(valid == TRUE)

{

treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(

dirtree->view));

gtk_tree_selection_select_iter(treesel, &iter);

_refresh_child(dirtree, &iter, path, NULL);

}

static gboolean _refresh_child(Dirtree * dirtree, GtkTreeIter * parent,

char const * path, char const * basename)

{

gboolean ret = FALSE;

DIR * dir;

struct dirent * de;

GtkTreeModel * model = GTK_TREE_MODEL(dirtree->store);

GtkTreeIter iter;

gboolean valid;

GtkTreePath * p = NULL;

String * q;

gchar * r;

if(basename == NULL)

basename = "";

for(valid = gtk_tree_model_iter_children(model, &iter, parent);

valid == TRUE;

valid = gtk_tree_store_remove(dirtree->store, &iter));

if((dir = opendir(path)) == NULL)

return FALSE;

while((de = readdir(dir)) != NULL)

{

/* skip hidden folders except if we traverse it */

if(de->d_name[0] == '.' && strcmp(de->d_name, basename) != 0)

continue;

if(de->d_type != DT_DIR) /* XXX d_type is not portable */

continue;

q = string_new_append(path, "/", de->d_name, NULL);

r = (q != NULL) ? g_filename_display_basename(q) : NULL;

gtk_tree_store_insert(dirtree->store, &iter, parent, -1);

gtk_tree_store_set(dirtree->store, &iter, 0, dirtree->folder,

1, (r != NULL) ? r : de->d_name, 2, q, -1);

/* remember the folder we mean to traverse */

if(p == NULL && strcmp(de->d_name, basename) == 0)

p = gtk_tree_model_get_path(model, &iter);

g_free(r);

string_delete(q);

}

closedir(dir);

if(p == NULL)

return FALSE;

gtk_tree_view_expand_to_path(GTK_TREE_VIEW(dirtree->view), p);

ret = gtk_tree_model_get_iter(model, parent, p);

gtk_tree_path_free(p);

return ret;

}

/* callbacks */

/* dirtree_on_row_activated */

static void _dirtree_on_row_activated(GtkTreeView * view, GtkTreePath * path,

GtkTreeViewColumn * column, gpointer data)

{

BrowserPlugin * plugin = data;

Dirtree * dirtree = plugin->priv;

GtkTreeModel * model = GTK_TREE_MODEL(dirtree->store);

GtkTreeIter iter;

gchar * location;

gtk_tree_model_get_iter(model, &iter, path);

gtk_tree_model_get(model, &iter, 2, &location, -1);

plugin->helper->set_location(plugin->helper->browser, location);

g_free(location);

}